83820 Federal Register / Vol. 88, No. 230 / Friday, December 1, 2023 / Rules and Regulations 

(2) Where paragraphs (b)(2)(i) and (b)(3)(i) 

of ANAC AD 2023–06–01 specify ‘‘before the 

next flight, accomplish the paragraph (c) of 

this AD after to accomplish the paragraph 

(b)(4) of this AD’’ as corrective actions for 

certain conditions, this AD requires replacing 

those words with ‘‘before the next flight, 

accomplish paragraph (c) of this AD after 

accomplishing paragraph (b)(4) of this AD.’’ 

(3) Where paragraph (b)(3) of ANAC AD 

2023–06–01 specifies to ‘‘measure de 

distances,’’ this AD requires replacing those 

words with ‘‘measure the distances.’’ 

(4) All applicable related investigative and 

corrective actions specified in paragraphs 

(b)(4)(iii) and (b)(4)(iii)(a) of ANAC AD 2023– 

06–01 must be done before the next flight 

after the functional check of the left-hand 

(LH) and right-hand (RH) wing aileron 

control system. 

(5) All applicable related investigative 

actions specified in paragraph (c)(4)(ii) of 

ANAC AD 2023–06–01 must be done before 

the next flight after the detailed inspection 

on the LH and RH removed aileron surface, 

as applicable. 

(6) Where paragraph (d) of ANAC AD 

2023–06–01 specifies to repeat the 

inspections ‘‘at each 5,500 FH,’’ this AD 

requires replacing those words with ‘‘at 

intervals not to exceed 5,500 FH.’’ 

(7) This AD does not adopt paragraph (e) 

of ANAC AD 2023–06–01. 

(8) Although the service information 

specified in ANAC AD 2023–06–01 specifies 

returning certain parts the manufacturer, this 

AD does not include that requirement. 

(i) No Reporting Requirement 

Although the service information in ANAC 

AD 2023–05–02 specifies to submit certain 

information to the manufacturer, this AD 

does not include that requirement. 

(j) Additional AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Validation Branch, FAA, has the authority to 

approve AMOCs for this AD, if requested 

using the procedures found in 14 CFR 39.19. 

In accordance with 14 CFR 39.19, send your 

request to your principal inspector or 

responsible Flight Standards Office, as 

appropriate. If sending information directly 

to the manager of the International Validation 

Branch, mail it to the address identified in 

paragraph (k) of this AD. Information may be 

emailed to: 9-AVS-AIR-730-AMOC@faa.gov. 

Before using any approved AMOC, notify 

your appropriate principal inspector, or 

lacking a principal inspector, the manager of 

the responsible Flight Standards Office. 

(2) Contacting the Manufacturer: For any 

requirement in this AD to obtain instructions 

from a manufacturer, the instructions must 

be accomplished using a method approved 

by the Manager, International Validation 

Branch, FAA; or ANAC; or ANAC’s 

authorized Designee. If approved by the 

ANAC Designee, the approval must include 

the Designee’s authorized signature. 

(k) Additional Information 

For more information about this AD, 

contact Joshua Bragg, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; phone: 817–222– 

5366; email: joshua.k.bragg@faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless this AD specifies otherwise. 

(i) Ageˆncia Nacional de Aviac ̧a ̃o Civil 

(ANAC) AD 2023–06–01, effective June 16, 

2023. 

(ii) [Reserved] 

(3) For ANAC AD 2023–06–01, contact 

National Civil Aviation Agency (ANAC), 

Aeronautical Products Certification Branch 

(GGCP), Rua Dr. Orlando Feirabend Filho, 

230—Centro Empresarial Aquarius—Torre 

B—Andares 14 a 18, Parque Residencial 

Aquarius, CEP 12.246–190—Sa ̃o Jose ́ dos 

Campos—SP, Brazil; telephone 55 (12) 3203– 

6600; email: pac@anac.gov.br; website 

anac.gov.br/en/. You may find this ANAC 

AD on the ANAC website at 

sistemas.anac.gov.br/certificacao/DA/ 

DAE.asp. 

(4) You may view this material at the FAA, 

Airworthiness Products Section, Operational 

Safety Branch, 2200 South 216th St., Des 

Moines, WA. For information on the 

availability of this material at the FAA, call 

206–231–3195. 

(5) You may view this material at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

visit www.archives.gov/federal-register/cfr/ 

ibr-locations or email fr.inspection@nara.gov. 

Issued on November 16, 2023. 

Ross Landes, 

Deputy Director for Regulatory Operations, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2023–26383 Filed 11–30–23; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1713; Project 

Identifier MCAI–2023–00781–T; Amendment 

39–22582; AD 2023–21–10] 

RIN 2120–AA64 

Airworthiness Directives; ATR—GIE 

Avions de Transport Re ́gional 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

ATR—GIE Avions de Transport 

Re ́gional Model ATR42–500 and 

ATR72–212A airplanes. This AD was 

prompted by reports of loose fasteners 

and cracks in the horizontal stabilizer 

(HS) left- and right-hand leading edge 

lateral ribs, the box in between, the 

center box upper panel, and HS forward 

back-up fitting. This AD requires an 

inspection of the HS affected areas for 

discrepancies and applicable corrective 

action, as specified in a European Union 

Aviation Safety Agency (EASA) AD, 

which is incorporated by reference. The 

FAA is issuing this AD to address the 

unsafe condition on these products. 

DATES: This AD is effective January 5, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of January 5, 2024. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2023–1713; or in person at 

Docket Operations between 9 a.m. and 

5 p.m., Monday through Friday, except 

Federal holidays. The AD docket 

contains this final rule, the mandatory 

continuing airworthiness information 

(MCAI), any comments received, and 

other information. The address for 

Docket Operations is U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC 20590. 

Material Incorporated by Reference: 

• For EASA material incorporated by 

reference in this AD, contact EASA, 

Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 

8999 000; email ADs@easa.europa.eu; 

website easa.europa.eu. You may find 

this material on the EASA website at 

ad.easa.europa.eu. 

• For ATR—GIE Avions de Transport 

Re ́gional service information 

incorporated by reference in this AD, 

contact ATR—GIE Avions de Transport 

Re ́gional, 1 Alle ́e Pierre Nadot, 31712 

Blagnac Cedex, France; telephone +33 

(0) 5 62 21 62 21; fax +33 (0) 5 62 21 

67 18; email continued.airworthiness@

atr aircraft.com; website atraircraft.com. 

• You may view this material at the 

FAA, Airworthiness Products Section, 

Operational Safety Branch, 2200 South 

216th St., Des Moines, WA. For 

information on the availability of this 

material at the FAA, call 206–231–3195. 

It is also available in the AD docket at 

regulations.gov under Docket No. FAA– 

2023–1713. 

FOR FURTHER INFORMATION CONTACT: 

Shahram Daneshmandi, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; 


lotter on DSK11XQN23PROD with RULES1
Federal Register / Vol. 88, No. 230 / Friday, December 1, 2023 / Rules and Regulations 83821 

telephone 206–231–3220; email 

shahram.daneshmandi@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to certain ATR—GIE Avions de 

Transport Re ́gional Model ATR42–500 

and ATR72–212A airplanes. The NPRM 

published in the Federal Register on 

August 14, 2023 (88 FR 54944). The 

NPRM was prompted by AD 2023–0125, 

dated June 22, 2023, issued by EASA, 

which is the Technical Agent for the 

Member States of the European Union 

(EASA AD 2023–0125) (also referred to 

as the MCAI). The MCAI states that 

several occurrences of loose fasteners 

and cracks on the HS left- and righthand leading edge lateral ribs, the box 

in between, the center box upper panel, 

and HS forward back-up fitting have 

been reported. Subsequent 

investigations identified possible 

manufacturing errors and a list of 

horizontal tail planes that could be 

affected by similar issues. This 

condition, if not detected and corrected, 

could reduce the structural integrity of 

the airplane. 

In the NPRM, the FAA proposed to 

require an inspection of the HS affected 

areas (HS left-hand and right-hand 

leading edge lateral ribs, the box in 

between, the center box upper panel, 

and HS forward back-up fitting). for 

discrepancies and applicable corrective 

action, as specified in EASA AD 2023– 

0125. The FAA is issuing this AD to 

address loose, missing, or incorrectly 

installed fasteners, composite 

delamination, and cracks in the HS. The 

unsafe condition, if not addressed, 

could result in reduced structural 

integrity of the airplane. 

You may examine the MCAI in the 

AD docket at regulations.gov under 

Docket No. FAA–2023–1713. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received no comments on 

the NPRM or on the determination of 

the cost to the public. 

Conclusion 

This product has been approved by 

the aviation authority of another 

country and is approved for operation in 

the United States. Pursuant to the FAA’s 

bilateral agreement with this State of 

Design Authority, it has notified the 

FAA of the unsafe condition described 

in the MCAI referenced above. The FAA 

reviewed the relevant data and 

determined that air safety requires 

adopting this AD as proposed. 

Accordingly, the FAA is issuing this AD 

to address the unsafe condition on this 

product. Except for minor editorial 

changes, this AD is adopted as proposed 

in the NPRM. None of the changes will 

increase the economic burden on any 

operator. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2023–0125 specifies 

procedures for a one-time detailed 

inspection of the HS left- and right-hand 

leading edge lateral ribs, the box in 

between, the center box upper panel, 

and HS forward back-up fitting for 

discrepancies (i.e., loose, missing, and 

incorrectly installed fasteners, 

composite delamination, and a cracked 

fitting); and applicable corrective action. 

The corrective action includes 

contacting the manufacturer for repair 

instructions if any discrepancy is 

detected during any inspection. 

ATR Service Bulletin ATR42–55– 

0020, dated March 2, 2023; and ATR 

Service Bulletin ATR72–55–1013, dated 

March 2, 2023; identify the affected 

airplane serial numbers. 

This material is reasonably available 

because the interested parties have 

access to it through their normal course 

of business or by the means identified 

in the ADDRESSES section. 

Costs of Compliance 

The FAA estimates that this AD 

affects 16 airplanes of U.S. registry. The 

FAA estimates the following costs to 

comply with this AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

8 work-hours × $85 per hour = $680 .......................................................................................... $0 $680 $10,880 

The FAA has received no definitive 

data on which to base the cost estimates 

for the on-condition repairs specified in 

this AD. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. Subtitle VII: 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

The FAA is issuing this rulemaking 

under the authority described in 

Subtitle VII, Part A, Subpart III, Section 

44701: General requirements. Under 

that section, Congress charges the FAA 

with promoting safe flight of civil 

aircraft in air commerce by prescribing 

regulations for practices, methods, and 

procedures the Administrator finds 

necessary for safety in air commerce. 

This regulation is within the scope of 

that authority because it addresses an 

unsafe condition that is likely to exist or 

develop on products identified in this 

rulemaking action. 

Regulatory Findings 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will not have a 

substantial direct effect on the States, on 

the relationship between the national 

government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Will not affect intrastate aviation 

in Alaska, and 

(3) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 14 CFR part 39 as 

follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 


lotter on DSK11XQN23PROD with RULES1
83822 Federal Register / Vol. 88, No. 230 / Friday, December 1, 2023 / Rules and Regulations 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

2023–21–10 ATR—GIE Avions de 

Transport Re ́gional: Amendment 39– 

22582; Docket No. FAA–2023–1713; 

Project Identifier MCAI–2023–00781–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective January 5, 2024. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to ATR—GIE Avions de 

Transport Re ́gional Model ATR42–500 and 

ATR72–212A airplanes, certificated in any 

category, as identified in ATR Service 

Bulletin ATR42–55–0020, dated March 2, 

2023; or ATR Service Bulletin ATR72–55– 

1013, dated March 2, 2023; as applicable. 

(d) Subject 

Air Transport Association (ATA) of 

America Code: 55, Stabilizers. 

(e) Unsafe Condition 

This AD was prompted by reports of loose 

fasteners and cracks in the horizontal 

stabilizer (HS) left- and right-hand leading 

edge lateral ribs, the box in between, the 

center box upper panel, and HS forward 

back-up fitting. The FAA is issuing this AD 

to address loose, missing, or incorrectly 

installed fasteners, composite delamination, 

and cracks in the HS. The unsafe condition, 

if not addressed, could result in reduced 

structural integrity of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Requirements 

Except as specified in paragraphs (h) and 

(i) of this AD: Comply with all required 

actions and compliance times specified in, 

and in accordance with, European Union 

Aviation Safety Agency (EASA) AD 2023– 

0125, dated June 22, 2023 (EASA AD 2023– 

0125). 

(h) Exceptions to EASA AD 2023–0125 

(1) Where paragraph (1) of EASA AD 2023– 

0125 refers to its effective date, this AD 

requires using the effective date of this AD. 

(2) Where paragraph (2) of EASA AD 2023– 

0125 specifies to ‘‘contact ATR for approved 

repair instructions and, within the 

compliance time specified therein, 

accomplish those instructions accordingly’’ if 

any discrepancy is detected, for this AD if 

any crack is detected, the crack must be 

repaired before further flight using a method 

approved by the Manager, International 

Validation Branch, FAA; or EASA; or ATR— 

GIE Avions de Transport Re ́gional’s EASA 

Design Organization Approval (DOA). If 

approved by the DOA, the approval must 

include the DOA-authorized signature. 

(3) This AD does not adopt the ‘‘Remarks’’ 

section of EASA AD 2023–0125. 

(i) No Reporting Requirement 

Although the service information 

referenced in EASA AD 2023–0125 specifies 

to submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

(j) Additional AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Validation Branch, FAA, has the authority to 

approve AMOCs for this AD, if requested 

using the procedures found in 14 CFR 39.19. 

In accordance with 14 CFR 39.19, send your 

request to your principal inspector or 

responsible Flight Standards Office, as 

appropriate. If sending information directly 

to the International Validation Branch, send 

it to the attention of the person identified in 

paragraph (k) of this AD. Information may be 

emailed to: 9-AVS-AIR-730-AMOC@faa.gov. 

Before using any approved AMOC, notify 

your appropriate principal inspector, or 

lacking a principal inspector, the manager of 

the responsible Flight Standards Office. 

(2) Contacting the Manufacturer: For any 

requirement in this AD to obtain instructions 

from a manufacturer, the instructions must 

be accomplished using a method approved 

by the Manager, International Validation 

Branch, FAA; or EASA; or ATR—GIE Avions 

de Transport Re ́gional’s EASA Design 

Organization Approval (DOA). If approved by 

the DOA, the approval must include the 

DOA-authorized signature. 

(k) Additional Information 

For more information about this AD, 

contact Shahram Daneshmandi, Aviation 

Safety Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; telephone 

206–231–3220; email 

shahram.daneshmandi@faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless this AD specifies otherwise. 

(i) European Union Aviation Safety Agency 

(EASA) AD 2023–0125, dated June 22, 2023. 

(ii) ATR Service Bulletin ATR42–55–0020, 

dated March 2, 2023. 

(iii) ATR Service Bulletin ATR72–55–1013, 

dated March 2, 2023. 

(3) For EASA AD 2023–0125, contact 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 8999 

000; email ADs@easa.europa.eu; website 

easa.europa.eu. You may find this EASA AD 

on the EASA website ad.easa.europa.eu. 

(4) For ATR service information identified 

in this AD, contact ATR—GIE Avions de 

Transport Re ́gional, 1 Alle ́e Pierre Nadot, 

31712 Blagnac Cedex, France; telephone +33 

(0) 5 62 21 62 21; fax +33 (0) 5 62 21 67 18; 

email continued.airworthiness@atr 

aircraft.com; website atr-aircraft.com. 

(5) You may view this material at the FAA, 

Airworthiness Products Section, Operational 

Safety Branch, 2200 South 216th Street, Des 

Moines, WA. For information on the 

availability of this material at the FAA, call 

206–231–3195. 

(6) You may view this material at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

visit: www.archives.gov/federal-register/cfr/ 

ibr-locations or email fr.inspection@nara.gov. 

Issued on October 20, 2023. 

Ross Landes, 

Deputy Director for Regulatory Operations, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2023–26381 Filed 11–30–23; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1710; Project 

Identifier MCAI–2023–00243–T; Amendment 

39–22600; AD 2023–22–16] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc., Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

Bombardier, Inc., Model CL–600–2B16 

(604 Variant) airplanes. This AD was 

prompted by reports from the supplier 

that sensing elements of the bleed air 

leak detection system were 

manufactured with insufficient salt fill, 

which can result in an inability to detect 

hot bleed air leaks. This AD requires 

testing of all affected overheat detection 

sensing elements of the bleed air leak 

detection system, and replacement if 

necessary. This AD also prohibits the 

installation of affected parts. The FAA 

is issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD is effective January 5, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of January 5, 2024. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2023–1710; or in person at 

Docket Operations between 9 a.m. and 

5 p.m., Monday through Friday, except 

Federal holidays. The AD docket 

contains this final rule, the mandatory 

continuing airworthiness information 

(MCAI), any comments received, and 


lotter on DSK11XQN23PROD with RULES1